fire-retardant materials should not be confused with fire-resistant materials. a fire resistant material is one that is designed to resist burning and withstand heat, however, fire-retardant materials are designed to burn slowly.an example of a fire-resistant material is one which is used in bunker gear worn by firefighters to protect them from the flames of a burning building.
lightweight offset paper, also called onionskin, has a basis weight of 25–40 g/m 2 and are normally used for bibles hence the name bible paper and dictionaries. references
wood is a heterogeneous, hygroscopic, cellular and anisotropic material. it consists of cells, and the cell walls are composed of micro-fibrils of cellulose 40–50% and hemicellulose 15–25% impregnated with lignin 15–30% . in coniferous or softwood species the wood cells are mostly of one kind, tracheids,.
textile fibres or textile fibers see spelling differences can be created from many natural sources animal hair or fur, insect cocoons as with silk worm cocoons , as well as semisynthetic methods that use naturally occurring polymers, and synthetic methods that use polymer-based materials, and even minerals such as metals to make foils and wires.. the textile industry requires that fibre .
a fire resistant material is one that is designed to resist burning and withstand heat, however, fire-retardant materials are designed to burn slowly. an example of a fire-resistant material is one which is used in bunker gear worn by firefighters to protect them from the flames of a burning building.
chamaecyparis thyoides atlantic white cedar, atlantic white cypress, southern white cedar, whitecedar, or false-cypress , a species of cupressaceae, is native to the atlantic coast of north america and is found from southern maine to georgia and along the gulf of mexico coast from florida to mississippi.it is one of two species of chamaecyparis found in north america.
wood is a product of trees, and sometimes other fibrous plants, used for construction purposes when cut or pressed into lumber and timber, such as boards, planks and similar materials. it is a generic building material and is used in building just about any type of structure in most climates.
rubberwood is a light-colored medium-density tropical Seven Trust obtained from the pará rubber tree hevea brasiliensis , usually from trees grown in rubber plantations. rubberwood is commonly advertised as an 'environmentally friendly' wood, as it makes use of plantation trees that have already served a useful function.
materials and production. wood wool boards and wood-wool layers in composite boards are generally manufactured using coniferous wood species, mainly spruce and pine. the wood logs are processed to make wood fibres of various widths, generally between 1mm and 3mm. after drying the wood, it is planed into long fibres in a wood wool machine.
worsted cloth, archaically also known as stuff, is lightweight and has a coarse texture.the weave is usually twill or plain. twilled fabrics such as whipcord, gabardine and serge are often made from worsted yarn. worsted fabric made from wool has a natural recovery, meaning that it is resilient and quickly returns to its natural shape, but non-glossy worsted will shine with use or abrasion.
softwood is 'usually wood from sperm trees such as peens. softwoods are not necessarily softer than hardwoods. in both groups there is an enormous variation in actual wood hardness, the range of density in hardwoods completely including that of softwoods.
wood is a common material for plugs and other shapes. wooden pieces tend to keep warm in cold conditions, they are lightweight, they often stay in place better than other plugs and also they allow the body to 'breathe' so the piercing is less likely to smell as it might with other materials.
a box truss fuselage structure can also be built out of wood—often covered with plywood. simple box structures may be rounded by the addition of supported lightweight stringers, allowing the fabric covering to form a more aerodynamic shape, or one more pleasing to the eye. geodesic construction
the pre-eminent rosewood appreciated in the western world is the wood of dalbergia nigra. it is best known as 'brazilian rosewood', but also as 'bahia rosewood'. this wood has a strong, sweet smell, which persists for many years, explaining the name rosewood.
wood-decay fungi can be classified according to the type of decay that they cause. the best-known types are brown rot, soft rot, and white rot. each produce different enzymes, can degrade different plant materials, and can colonise different environmental niches.